Dayē weather in September

In September, Dayē sees average daytime highs of 23°C and overnight lows near 14°C, with 244 mm of rain across 24.5 wet days and about 12.1 hours of daylight. It is the 10th-warmest and 3rd-wettest month of the year here.

Highs climb over the month, from about 22°C in the first days to 24°C by the end. The sky is clear or mostly clear about 25% of the time in September, and the air most often feels comfortable.

Daylight stretches from about 12 h 12 min at the start of September to 11 h 54 min by month's end. Set against the rest of the year, September is Dayē's 10th-clearest and 12th-windiest month. For the whole year in context, see Dayē's year-round climate.

Daytime high
23°
10th warmest
Overnight low
14°
4th coldest
Rainfall
244 mm
24.5 wet days
Daylight
12 h 06 min
6:20 AM – 6:23 PM
Cloud cover
57%
10th clearest
Wind
3 km/h
12th windiest
Solar energy
5.86 kWh/m²
Travel score
4.7
out of 10

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 22°C in the first days to 24°C by the end.

A typical September day in Dayē reaches about 23°C in the afternoon and slips back to 14°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 21°C and 25°C. Set against its neighbours, September runs about 1°C warmer than August and about 2°C cooler than October.

10°15°20°25°30°151015202530
Avg high (°C)Avg low (°C)
12214
22214
32214
42214
52314
62314
72314
82314
92314
102314
112314
122314
132314
142314
152314
162314
172314
182314
192314
202314
212314
222414
232414
242414
252414
262414
272414
282414
292414
302414

Dayē weather by month

How September compares with the rest of the year at a glance. September is the 10th-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan27° / 14°51.111.58.2
Feb29° / 15°102.311.77.0
Mar29° / 16°377.511.95.9
Apr29° / 17°478.212.25.6
May29° / 17°8510.712.45.7
Jun25° / 15°22224.212.64.6
Jul22° / 14°37030.712.53.6
Aug22° / 14°37930.812.33.5
Sep23° / 14°24424.512.14.7
Oct25° / 14°566.911.87.7
Nov26° / 13°162.811.58.4
Dec26° / 13°4111.48.6

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 25% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 29% of September, with mostly cloudy or overcast conditions the remaining 47%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
13862
23961
34159
44159
54258
64357
74357
84555
94654
104654
114753
124852
134951
145050
155149
165248
175347
185545
195644
205842
215941
226040
236238
246436
256535
266634
276931
287030
297030
307129

Chance of precipitation in September

Any precipitation

Dayē gets around 244 mm of rain over 24.5 wet days in September. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 81% and peaks near 98% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%80%100%151015202530
Rain chance (%)
198
298
397
497
596
696
795
894
993
1092
1191
1290
1389
1487
1586
1684
1782
1880
1978
2076
2174
2271
2369
2466
2563
2661
2758
2855
2952
3049

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

Most of September feels comfortable — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, September lands in the comfortable band about 80% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)
109010
208911
308911
408911
508911
618712
718712
818712
918712
1018712
1128612
1228612
1328612
1438512
1548412
1648511
1758411
1868311
1988210
2098110
21117910
2214779
2316759
2419738
2522708
2625687
2729647
2833616
2937576
3041545

Wind in September

Winds average 3 km/h in September, the calmest month.

Across September, daily wind ranges from about 3 km/h on the calmest days to 4 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
13calm
23calm
33calm
43calm
53calm
63calm
73calm
83calm
93calm
103calm
113calm
123calm
133calm
143calm
153calm
163calm
173calm
183calm
193calm
204calm
214calm
224calm
234calm
244calm
254calm
264calm
274calm
284calm
294calm
304calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 12 min at the start of September to 11 h 54 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 18 minutes over September. Sunrise moves from 6:21 AM to 6:19 AM, and sunset from 6:32 PM to 6:14 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.26:216:32
212.26:216:32
312.26:216:31
412.26:216:31
512.26:216:30
612.16:216:29
712.16:206:29
812.16:206:28
912.16:206:27
1012.16:206:27
1112.16:206:26
1212.16:206:25
1312.16:206:25
1412.16:206:24
1512.16:206:24
1612.16:206:23
1712.06:206:22
1812.06:196:22
1912.06:196:21
2012.06:196:20
2112.06:196:20
2212.06:196:19
2312.06:196:18
2412.06:196:18
2512.06:196:17
2612.06:196:16
2712.06:196:16
2811.96:196:15
2911.96:196:15
3011.96:196:14

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.86 kWh/m².

For context, solar energy here swings from a low near 4.83 kWh/m² to a high of 6.71 kWh/m² in April across the year — September's 5.86 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.5Bright
25.5Bright
35.6Bright
45.6Bright
55.6Bright
65.7Bright
75.7Bright
85.7Bright
95.7Bright
105.8Bright
115.8Bright
125.8Bright
135.8Bright
145.8Bright
155.9Bright
165.9Bright
175.9Bright
185.9Bright
196.0Bright
206.0Bright
216.0Bright
226.0Intense
236.0Intense
246.0Intense
256.1Intense
266.1Intense
276.1Intense
286.1Intense
296.1Intense
306.2Intense
Planning a trip in September

Hazard calendar for Dayē

In seasonPeak

In September, Dayē sits inside its monsoon season. The full year is below, with each hazard's peak months called out.

Dayē's monsoon runs June–September, when most of the year's rain falls.

Monsoon
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is September a good time to visit Dayē?

Our two travel scores rate September for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

4.7
Sightseeing
9th-best month of the year
3.8
Beach & pool
10th-best month of the year

September is a reasonable time to visit Dayē for sightseeing.

What to pack for Dayē in September

From September's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In September, Dayē sees daytime highs around 23°C and nights near 14°C. Pack rain gear. Worth having: light clothes and sun protection. About 25 days see rain.

rain gearlight clothessun protection

UV index in Dayē in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 13 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Dayē peaks around March 21 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near November 23 at about 10 (extreme).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeMar 21UV 15Nov 23UV 10
UV index (midday)Level
Jan12Extreme
Feb13Extreme
Mar15Extreme
Apr15Extreme
May13Extreme
Jun12Extreme
Jul12Extreme
Aug14Extreme
Sep13Extreme
Oct13Extreme
Nov10Extreme
Dec10Extreme

Air quality in Dayē in September

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where September falls, not just the annual average.

Air quality in Dayē is worst in January — around 42 µg/m³ PM2.5 (poor), and holds fairly steady the rest of the year.

Modeled monthly averages (CAMS reanalysis, 2015–2024).

0204060JanFebMarAprMayJunJulAugSepOctNovDecPoorModeratePoorModeratePoorJan 1242 µg/m³Aug 1230 µg/m³
PM2.5 (µg/m³)Level
Jan42Poor
Feb39Poor
Mar35Poor
Apr34Moderate
May33Moderate
Jun38Poor
Jul32Moderate
Aug30Moderate
Sep38Poor
Oct41Poor
Nov39Poor
Dec41Poor
Location & terrain

Where is Dayē?

Dayē sits at 9.9°N, 38.3°E, 2,556 m above sea level, in Ethiopia. The nearest listed city is Gebre Guracha, 17 km away.

Genet

Topography around Dayē

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Dayē.

Within 3 km, the terrain around Dayē has large variations in elevation — a maximum elevation change of 688 m around an average of 2,484 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,352 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,608 m.

The land around Dayē is covered by cropland (84%) within 3 km, cropland (76%) within 16 km, and cropland (63%) and shrubs (26%) within 80 km.

3 km
688 m
16 km
1,352 m
80 km
2,608 m
treesshrubsgrasslandcroplandbare terrain
September weather nearby: Gebre Guracha 17 km · Fichē 52 km · Lumamē 55 km · Kachīsī 57 km · Bichena 63 km · Debre Mark’os 78 km · ‘Alem Ketema 87 km · Genet 94 km

Ethiopia travel facts

Travel advisory
Level 3
Reconsider Travel
Power plugs
Type C / E / F / L
220 V · 50 Hz
Prices
≈ 37% of US
price level, 2025
GDP per capita
$933
2025
Happiness
4.0 / 10
World Happiness, 2025
Safe drinking water
14%
of population, 2024
Homicide rate
8.5
per 100k, 2012
Road deaths
28.2
per 100k/yr, 2019
Income group
Low
World Bank
English
Low
EF EPI 499
Religion
Ethiopian Orthodox 44%Muslim 31%Protestant 23%other 1%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Dayē (9.8833°, 38.2667°, elevation 2,556 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).